127640214605 has 16 divisors (see below), whose sum is σ = 153658028160. Its totient is φ = 101785989312.

The previous prime is 127640214599. The next prime is 127640214607. The reversal of 127640214605 is 506412046721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 127640214605 - 2¹⁶ = 127640149069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127640214607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3222632 + ... + 3261998.

It is an arithmetic number, because the mean of its divisors is an integer number (9603626760).

Almost surely, 2^127640214605 is an apocalyptic number.

It is an amenable number.

127640214605 is a deficient number, since it is larger than the sum of its proper divisors (26017813555).

127640214605 is a wasteful number, since it uses less digits than its factorization.

127640214605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41428.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 127640214605 in words is "one hundred twenty-seven billion, six hundred forty million, two hundred fourteen thousand, six hundred five".